package com.touka.utils;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;

/**
 * 阿里云 OSS 工具类
 */
@Data
@ConfigurationProperties(prefix = "aliyun.oss")
@Component
public class AliOSSUtils {

  // @Value("${aliyun.oss.endpoint}") // @Value("${value}") 注入application.properties的属性
  private String endpoint;
  // @Value("${aliyun.oss.accessKeyId}")
  private String accessKeyId;
  // @Value("${aliyun.oss.accessKeySecret}")
  private String accessKeySecret;
  // @Value("${aliyun.oss.bucketName}")
  private String bucketName;

  /**
   * 实现上传图片到OSS
   */
  public String upload(MultipartFile file) throws IOException {
    // 获取上传的文件的输入流
    InputStream inputStream = file.getInputStream();

    // 避免文件覆盖
    String originalFilename = file.getOriginalFilename();
    String fileName = UUID.randomUUID().toString() + originalFilename.substring(originalFilename.lastIndexOf("."));

    //上传文件到 OSS
    OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
    ossClient.putObject(bucketName, fileName, inputStream);

    //文件访问路径
    String url = endpoint.split("//")[0] + "//" + bucketName + "." + endpoint.split("//")[1] + "/" + fileName;
    // 关闭ossClient
    ossClient.shutdown();
    return url;// 把上传到oss的路径返回
  }

}
